Vacuum-machine.



PATENTED JULY 23, 1907. P. H. MOGABE & A. J. LAVOIE.

VACUUM MACHINE. v APPLIOATION FILED JUNI'. 15.1990.

UNITED STATES P ArENr OFFICE'.

.PHILLIP HENRY MCCABE AN D ALPHONSE JOSEPH LAVOIE, OF TORONTO, ONTARIO, OANADA,

i ASSI NORS, BY DIRECT AND MESNE ASSIGNMENTS, OF ON E-HALF TO SAID MCCABE, ONE- SIXT CANADA.`

TO SAID LAVOIE, AND ONE-THIRD TO-KING FREDERICK MACNAB, OF TORONTO,

VACUUM-MACHINE.

Patented July 23, 1907.

Application iiledgilfune 15, 1906. Serial No. 321.943.

To all whom it may concern: l f

Be it known that we, PHILLIP HENRY MCCABE, a subjectof the King of Great Britain, residing at 56 Palmerston avenueiin the city of Toronto, county of 5 York, Province of Ontario, in the Dominion of Canada, and .ALPHONSEI JOSEPH Avons, a subject of the King of Great Britain, residing at k351 Ossington avenue, in the city of Toronto, county of York, Province of Ontario, in the Dominion of Canada, have invented certain new and useful Improvements in Vacuum-Machines, of which the following isthe specification.

This invention relates to improvements in vacuum machines as described in the present specification and set forthin the of the same. l

\The invention consists essentially in having the interior contained in the nozzle casing, divided `into two compartments, and an adjustingpintle regulating the size of the mouth opening in the main compartment. I l,

The objects of the invention are to increase the facility withrwhich cleansing may be done by such maaccompanying drawings that form part chines,' to provide a flexible means which will permit the discharge of the dirt or other matter at any suitable 2 5 and to simplify and improve the construction o such devices, so that the cost of production and maintenance will be lessened and more effective work accomplished by the machine. In the drawings Figure 1 is a perspective view ofthe nozzle showing the inlet and suction pipes and the discharge pipe broken away. Fig. 2 is a horizontallongi tudinal section through Fig. l. Fig. 3 is a cross section of the nozzle through the line 'g1-2, Fig. 2. I

Like letters of reference indicate corresponding parts in each gure. y

Referring to the drawings, a is the nozzle casing preferably formed with a iiat o r oval shaped end por.

tion b having the inlet openings c and d and a central opening e therethrough to the interior contained within said casing. The interior ofthe casing a is. divided by a partition wall f formnga main air discharge chamber g, and a semi-annular chamber h partially surrounding the chamber g. The partitionwall f terminates in the tapered mouth t' which is preferably circular in cross section and forms the mouth or outlet of the main chamber g, and projects slightly beyond the Inain casing a. The chamber h completely surrounds the said mouth near the outer end. The main casing a is tapered from the base b to a cylindrically shaped end 7' and has'f'a reduced threaded portion la extending thereimm f l is a link section having the annular end portions m and n, `the end portion m being internally threaded place, to regulate the suction powers of the machineand fitting on the threaded portion k ofthe main casing a. The inner wall of the link section l is, at the inner end, of corresponding diameter to the inner surface of the wall of the vchamber li andconverges to a point o, following substantially the lines of the outer wall of the projecting mouthfportion z', and from the said point of convergence flares outwardly to the outer end. The extreme outer end of the inner wall is ared outwardly forming a tapered seat p. The annular end portion 'n of the link sectionl is threaded externally and coupled to thex discharge hose q bythe hose coupling 1. lhe hose coupling r has 'the inner end thereof rounded, yand engaging the tapered seat p.

s is an annular flange surrounding the coupling r near the 'inner end'and t is a coupling nut threaded to engage the threaded portion n of the link section l and having an annular shoulder u surrounding the hose coupling 1 and abutting the outer face of the flange s. -It will thus be seen that the hose coupling r maybe pressed firmly to the tapered seat p making a secure air tight joint and doing away with the use of a com- 7 pressible packing. The inner wall of the hose coupling r is preferably ofthe same diameter as the inner wall of the link section lat the outer end, and leads from saidlink section to the discharge hose q. The outer surface of the hose coupling r islpreferably slightly tapered and has a vser-ies of annular notches-rv formed therein to insure a good joint between the coupling and the hose and the said hose maybe bound on the outside in any suitable manner.

x is an inlet pipe having a tapered threaded end tting into the correspondingly threaded inner wall of the orifice c. The inlet pipe :c may be of any suitable length and connected in any suitable manner to a compressed air reservoir. It will thus be seen that, when the air is turned on, it -will pass through the pipe :c and rush into the chamber g and on through the mouth 'i into the link section Z and past the 4point of conven-A gence o to the discharge hose q. The rush of airfpast `the entrance to the chamber h causes a vacuum in that chamber and as the said chamber is connected and 9 communicates with the suction pipe 2, which has av tapered end threaded correspondingly with the inner wall of the orifice d, any dust or matter picked up by said suction pipe will be drawn into the said chamber h and pass into the link section l and on with the rushing l air, passing through the discharge hose q which deposits it Where desired. l l

The central opening e into the main casing a is threaded on the inner wall anda correspondingly threaded plug 3 is screwed thereinto. The plug 3 has a central 1 orifice 4 therethrough and is threaded for a' portion of its length. i Y 5,is a pintle Vinserted through the plug 3 having a vool threaded portion 6 and astop shoulder 7 at one end at said threaded portion. The end oi the pintle 5 1ocated Within the chamber g isl tapered to a point and projects forwardly towgtrd the mouth of said chamber.

8 is a wheel or thinb nut fixcdly secured to4 the outer end of the pintlo' for turning said pintle in said plug and-as the said pintle is threaded it lwill travel inwardly or outwardly as it is turned,v thereby causing the tapered end lto move inwardly and outwardly in the 'circular tapered portion of the chamber g, thereby enfectly air tight..

A device such 'as described maybe utilized wher-- ever a supply oi compressed air is accessible it being merely necessary to connect the inlet pipe to the supply and adjust the pintle in the nozzle to suit the'requirements of the` work to be done. Various forms of linksections may be used according to the pressure of the air supply, that is, when the supply is a high pressure the point of convergence oi the interior wall oi the link section will need to be larger than when a low 'pressure supply is used, in order to give the proper iiow'to create the vacuum, and it will be readily understood that the link sections may be easily an'd quickly removed and replaced as required. The use of such a device overcomes many difficulties met with in machines having Working parts to 'create the required vacuum, as it is well known that a vacuum, to be of service, must be created close to the point oi application of the suction and this is impossible in many instances, but it is quite easily overcome by thisdevice, as air undr pressure may be carried a great distance. This device is also very applicable for cleaning purposes in railway coaches as a supply oi' compressed air may always be quickly obtained from the air brake system of .the train.

What we .claim as our invention is :fl. In a vacuum machine, a casing adjoining suction and pressure chambers and a nozzle casing securely attached to the outlet of the aforesaid casing and having its inner wall forming the continuation of the wall of the suction chamber surrounding the outlet from said pressure chamber and leading to the discharge chamber opening centrally arranged in said nozzle casing, said suction and-'pressure chambers having inlets at their front ends and conver-` gently arranged walls adapted to direct the ilow of the expansile iiuid and the passage of dust particles obliquehr from said inlets to said discharge opening, substantially as described.

2. Ina vacuum machine, a casing containing a pressure chamber and a suction chamber. and having a nozzle in communication with 'said chambers, the inner walls of arranged inlets to said suction and pressure chamberssaid chambers and nozzle converging from theparallelly rcspectivelyvto a common outlet in said nozzle and drawing the dust particles' to and through said common outletfin a direction substantially parallel with the direction ofthe flow of expansile i'luid, substantially as described.

3. In a vacuum machine, a casing containing a pressure chamber and a suction chamber'lconverging into the interior thereof from their respective and parallel inlets and u nozzle having its inner wall converging centrally to the discharge opening in aliuement with the outlet from. said pressure chamber, saidnozzle being secured to the 'reduced L end of the aforesaid casing and forming around the outer Wall of said pressure chamber a continuation of'the wall ot said suction chamber, said suction chamber being adapted to lead the particles of ,dust in a substantially direct line from Vthe inlet thereto obliquely .in-relation tothe direction of flow. oi the said expansiie iiuid through the pressure chamber substantially as'described.

4. ln a' vacuum machine, a casing containing a pressure chamber having its inner' walls converging to ari outlet and an inlet opening through the wall opposing said outlet, a suction chamber contiguous to said pressure chamber having its inner walls converging to an outlet in front' of Iand in alinement with the/aforesaid outlet and au inlet through' the wall' opposing the outlet, said Wall forming part with the wall surrounding the aforesaid inlet and said suction chamber being adapted to draw in the dust particles in a direction substantially parallel with the in.- flow of expansile fluid to the pressure chamber, substantially as described. f

5. A vacuum machine, comprising a casing having a lon- 'gitudinalfpartition .arranged therein dividing the interior thereof into pressure and suction clrambers, said chambers vhaving contiguous discharge openings therefrom at one end of said casing, and separate inlet openings through the opposing end, the walls of' said chambers vforming con-` tinuous unobstructed passages fromv said inlets to said dis` charge openings, a discharge nozzle inclosing the discharge end of said casing and having a central convergent orifice therethrough in communication with said pressure and suction chambers, and means for adjusting .the discharge opening from saidpressure chamber, substantially as described. A.. l

6. A vacuum -machine, comprising a convergent casing containing a pressure chamber and a suction chamber divldedfrom said pressure chamber by a longitudinal partition 'arranged withinsaid casing,. said partition forming a hollow cone shaped projection and having a central circular loriiic'e therethrough at the apex thereof -forming the discharge opening vfrom said pressure chamber, said suction chamber having an annular discharge opening surrounding said partition wall at thedis'charge end, and' said casing having inlet Yopenings therethrough at the 0p- 1 posite end to said outlets,'and a discharge nozzle forming a continuationv of the said :casing and having .the inner wall thereof converging to aicentral circular opening, said inner wall forming an unbroken continuationof the inner l wall of said suction chamber, substantially as described.

7. `Ar vacuum machine, comprising a casing having a iiattened end wall and sidewalls converging to a central circular open end and a partition wall longitudinally arranged 'therein forming within said casing a pressure chamber having a central tapered circular outlet and a semiannular suction chamber adjoining said pressure chamber completely surrounding the'wall of said'pressure chamber at the outlet end, a discharge nozzle secured to the circular open end of said casing completely closing in the outlets from said pressure and suction chambers and having the interior wall thereof forming a continuation of" the inner wall of said suction chamber and converging to a narrow central circular outlet, substantially as described.

8. In a-vacuummachine, the combination with the dis. charge nozzle, of a casing converging. from an end wall to a central circular opening at the opposing end and having a longitudinal partition therein dividing the interior into suction and pressure chambers having adjoining discharge openings at the said circular open end of the casing, suction and expansile fluid inlets inthe opposing end wall, a circular casingl having the inner wall thereof converging to a narrow opening adjacent to said discharge openings from said suction and pressure chambers and joining the aforesaid casing to said discharge nozzle, substantially as described.

9. In a vacuum machine, the combination with the dis charge nozzle, of a casing converging from an end wall to a central circular openingl at the opposing end and containing a suction chamber and a\ pressure chamber ,divided one from theother by al partition longitudinally arranged in said casing, said chambers having suction and expansile fluid inlets in the end wall opposing'said circular opening and contiguous outlets lat said circular opening, a casing joining said discharge nozzle with the aforesaid easing and having its inner walls converging from each end thereof to form a narrow neck opening immediately in front. ot'lsaid contiguous openings from the suction and pressure chambers, a bushing in`serted through a suitable opening in the aforesaid end wall of the easing and having a central threaded oritice and a gland t'ormed at the upper end thereof, and apintle having a thread thereon intermediate of its length and inserted in said bushing and suitably packed and extending into said pressure chamber to the discharge opening therefrom, substantially as described.

10. A vacuum machine, comprising a nozzle casing hav ing a flattened end wall and tapered to a substantially cylindrical shape at the other end and inclosig a pressure chamber the extreme end thereof being threaded on the exterior and a. vacuum chamber partially surrounding said .pressure chamber, the wall between said pressure chamber and said vacuum chamber projecting slightly l|eyond'the main casing-and forming a central tapered oritico from said pressure chamber, an inclosing member threaded internally at its`inner end correspondingly to the threaded end of the main casing and having an orilice therethrough converging to a point intermediate of its length and llaring outwardly therefrom to the outer end, a hose couplingr connected to the outer end of said inclosing member, an inlet. pipe leading from an expans'ile tiuid supply into said pressure chamber, a suction pipe leading into said vacuum chamber, a plug externally threaded to engage the threaded wall of a central circular-oritice in the llat tened end wall of the main casing and having a central orilice therethrough threaded from the interior end for a portion of its length and from the outer end inward, a pintle having a tapered inner end extending inwardly toward the outlet from the said pressure chamber and a threaded portion intermediate of its length correspondingly threaded to the orifice in the said plug and a shoulder at the inner end of said' t'h'readed portion, a suitable packing encircling said pinlh` and eusconsed in a recess in the central orilice in said plug. a suitable packing nut: correspomlingly threaded to the outer threaded portion ofthe central oritice in said plug. and a wheel or thumb nut tixedly securodvto the outer eml ot' said pintle, as and for the purpose specitied.

1l. A vacuum machine, comprisingr a nozzle casing conytaining a main chamber and a vacuum chamber open at one end and threaded on the exterior at said open end, an inlet pipe leading from an expansile fluid supply into said pressure chamber, adjustable means for enlarging and reduc'ingthe outlet t'rom said pressure chamber, a suction pipe leading into said vacuum chamber, an inclosing member internally threaded correspondingly to the threaded portion of said nozzle casing at the inner end and externally threaded at the outer end and havinga convergent orilice through the center thereot' and tiaring outwardly at the outer end and forming a seat, a hose coupling having a rounded end engal ng said seat and an annular tlange from the outer periphery and a central oritice therethrough, and a coupling nut internally threaded correA spondiugly to the threaded outer end of the inclosing meniber andl having an annular shoulder engaging the outer face of the annular ring on said coupling, as and for the purpose speeited.

Signed at the city ot' Toronto, in the county of York, lrovince ot' Ontario. seventh day of June, i906.

l'lllIiLll HENRY MetABll. ALPHONSE JOSlllII LAVOIE.'

Witnesses Il. lmNNIsoN, 1C. WILKIN.

in the Dominion ot Canada, this 

